Physics – Nuclear Physics
Scientific paper
Nov 1972
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1972nupha.195..146b&link_type=abstract
Nuclear Physics A, Volume 195, Issue 1, p. 146-158.
Physics
Nuclear Physics
9
Nuclear Reactions
Scientific paper
The 210Po(t, α)209Bi reaction has been studied at 20 MeV triton energy with an overall resolution of 20 keV FWHM. Absolute cross sections were established by a comparison of the (t, α) intensities to elastic triton scattering. The three lowest single-proton states in 209Bi were observed and spectroscopic factors were extracted from the measured cross sections by DWBA analysis. Starting at 2.43 MeV, six levels were strongly excited. These states have large 2p-1h proton components. The spectroscopic factors were extracted by a comparison of 210Po(t, α) cross sections to 208Pb(t, α)207T1 single-proton-hole cross sections measured previously at the same bombarding energy. The observed states and their properties were analyzed within the framework of the particle- (or hole) vibration coupling model. Surface vibrational states in 208Pb coupled to single protons as well as the proton pair addition modes (states in 210Po) coupled to a proton-hole were included in the analysis.
On leave from Universidad Nacional de Rosario, Rosario, Argentina. Supported by Consejo Nacional de Investigaciones Cientificas y Tecnicas, Argentina.
Barnes David P.
Broglia Ricardo A.
Casten R. F.
Ellegaard C.
Hansen Ole
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